497 citations · 2.1k across the 9 of their papers we have counts for
9 papers
A purely dipolar quantum gas
T. Lahaye, J. Metz, T. Koch +3
We report on experiments exploring the physics of dipolar quantum gases using a Chromium Bose-Einstein condensate (BEC). By means of a Feshbach resonance, it is possible to reduce…
d-wave collapse and explosion of a dipolar Bose-Einstein condensate
Thierry Lahaye, Jonas Metz, Bernd Froehlich +7
We investigate the collapse dynamics of a dipolar condensate of 52Cr atoms when the s-wave scattering length characterizing the contact interaction is reduced below a critical valu…
Stabilizing a purely dipolar quantum gas against collapse
T. Koch, T. Lahaye, J. Metz +3
We report on the experimental observation of the dipolar collapse of a quantum gas which sets in when we reduce the contact interaction below some critical value using a Feshbach r…
Strong dipolar effects in a quantum ferrofluid
Thierry Lahaye, Tobias Koch, Bernd Froehlich +5
We report on the realization of a Chromium Bose-Einstein condensate (BEC) with strong dipolar interaction. By using a Feshbach resonance, we reduce the usual isotropic contact inte…
A two-frequency acousto-optic modulator driver to improve the beam pointing stability during intensity ramps
B. Fröhlich, T. Lahaye, B. Kaltenhäuser +5
We report on a scheme to improve the pointing stability of the first order beam diffracted by an acousto-optic modulator (AOM). Due to thermal effects inside the crystal, the angul…
Damagnetization cooling of a gas
M. Fattori, T. Koch, S. Goetz +4
We demonstrate demagnetization cooling of a gas of ultracold Cr atoms. Demagnetization is driven by inelastic dipolar collisions which couple the motional degrees of freedom…